Boat



y 1933- J. PIETRZYKOWSKI 9 9 BOAT L1 Filed April 4, 1929 3 SheetsSheet l IN V EN TOR.'

ATTORNEYS.

y 3- J. PIETRZYKOWSK! 1,906,883

BOAT

Filed April 4, 1929 I5 Sheets-Sheet 2 IN VEN TORI A TTORNEYS.

May 2, 1933. J. PIETRZYKOWSKI BOAT Filed April 4, 1929 5 Sheets$heet I5 A TTORNEYS.

Patented May 2, 1933 UNITED STATES PATENT" OFFICE JOZEF PIETR-ZYKOWSKI, Q13 .EQLAND BOAT Application filed April 4, 1929, Serial No. 352,545, and in Poland September 8, 1928.

The object of the present invention is to body of the boat. Theribs 16 areeach made provide a boat, distinguished among the boats of. a layer ofwooden boards bent whiletreatnow in use by being water-tight and closed edwith steam and gluedtogetherafterwards. all around, so as to prevent sinking. The im- In the front and rear parts of the hullzthere proved constructionmakes the boat sufiicientare providedinner stiffening. ribs21- and 22 ly resistible to water and steady. The boat is constructed similarly tothe ribsl6 and fixed. illustrated in the appended drawings in to the main outerjwalls by bolts on the like hi h; 18. On the outside the front part. of, the. Figure 1 shows the longitudinal sectional hull is protected by an iron head 23. The i of th b at o li I- 1 Figur 2; stern outer wall of the hull has an iron head Q 1 Figure 2, a corresponding horizontal see 39 secured to the transversal frames 22 and tional view of the same, on line IIII, Figt0 the main outer walls 13. ure The hull is divided by transversal parti- Fi 3 d 4 h t diff t crosstlons 4 into at least three compartments 1, ti f th h ll t k along li V V 2 and 3. In the rear compartment is located Q51 d VI V1 f Fi 1, ti l d a shaft for a screw propeller 25. In the Figure 5 hows a frag nentary section of a, SLl116 IQfll COlIlpZtItlHGIlt is placed it PIlVy wooden rib. closed tightly from beneath by means of a The boat is divided into several compart- F p 2- In the part 2 of the hull nents of which the front o npartn' ent 1 con. 1S located thQ- p 1l0ts Cttblll ClOSGd around tains one or more cabins; the next comparty means of sld'e Walls 27 e d a flOor 28. ment 2 is destined for the pilot, and the rear There are p e ,Wetehhlghh doors 45 compartment 3 t i a privy 42 l d enabling communicatlon between the comtightly from beneath by means of a cover or Pertmehhs of the h e In the pp 1eart flap. The compartments communicate with of h Pllofis eehlh Placed a Window each other by Water-tight door 4 WlllCll is closed durlng bad weather and In the above-mentioned compartments P e t' good e Before the there are provided air inlet pipes 5 and 6 1 eehlh e e located B rS 31. In adapted to be closed from the inside by valves Pllot eeehlh 1e Placed h steellhg mech- 0 7 d Th pipes g d Valves 7 are nee anlsm while the motor 32 is located under mally used, the pipes 6 and valves 8 being the pllehis h I the front P Of the d only in Case f h boat being 0Ver boat there 1s provided a tube 34: mounted turned and the part of the hull shown in the whherftlghh 1n h y of the h T drawings as the upper part thereof becomh 13 Open at lts lower e geld opehlhg ing the lower one. Air is admitted through helhg Closed y e P- lhelde the tube there 89: the Pipes 5 d 6 only during the heavier 1s located a mast 35. During heavy storms Storms While during fi Weather the upper the mast is sunk into the Water and prevents Openings 9 are to be Opened. In the Walls of the ove rturning of the boat. On the upper the hull there is provided a number of wind the hull. y be placed on the 0 dOWS 41 and also a light reflector side motors 36 with air-propellers which perh The boat is elliptical in cross-section. The mm to mcrease t Speed of the boat and main outer walls of the hull consist of wooden maybe used durlng good Weather If these b d 13 extending longitudinally in respect outside motors were used the mast is taken f th b t Th b d are glued together out from the above-mentioned tube and laid 5 d laid one upon th so as t k alongthe deck of theboat. Theboatmaythus two layers. The hull of the boat is stiffened 1130 he Used as it ng V elfrom the inside by a number of internal Referring Fig s 3 and 4 the pipes 37 frames or ribs 16, held together by means of extending along the whole length of the hull bolts or the like 18. On the outer walls are constitute floats which ensure steady running 0 provided iron rings 19 placed around the of the boat. 119p What I claim is 1. A boat, comprising a hull made of a plurality of layers of Wood glued together and completely closed in a water-tight manner, stiffening ribs consisting of layers of Wood glued to the said layers on the inside of the hull, and iron rings surrounding the exterior of the hull.

2. A boat, comprising a hull made of a plurality of layers of Wood glued together and completely closed in a Water-tight manner, stiffening ribs each consisting of a plu- V rality of layers of Wood, bent while treated with steam and glued together, andiron rings surrounding the exterior of the hull.

3. A boat, comprising a hull made of a plurality of layers of Wood glued together and completely closed in a Water-tight manner, iron rings surrounding the exterior of the hull, and forged headers covering the front and rear ends of the boat.

In testimony whereof I have signed my name to'this specification.

JOZEF PIETRZYKOWSKI. 

